I have a Dynamite 4105 and notice that a small flake of styrofome went into a side vent. Will this hurt the charger/make it unsafe to opporate? It seems to work fine but I thought that I would ask.

Styrofoam isn't conductive so you should have zero concerns. If it bothers you, use dust off it impressed it to blow out the charger.

Thanks or the info. To be clear, you are talking about compressed air?